Student and Faculty Perceptions of OpenStax in High Enrollment CoursesThrough a mixed method approach, this article examines the student and faculty experiences of adopting and using an OpenStax textbook. With 1,299 student participants, it was found that students greatly value the quality, attributes, and the cost of the OpenStax Biology textbook, though minor concerns were raised about its online format. The student, faculty, and course benefits of this study offer a compelling argument for the adoption of high quality open education resources (OER) in public higher education contexts.